This black t-shirt features a playful graphic for sound engineers or audio enthusiasts. The design includes a visual representation of a soundboard, complete with sliders, buttons, and a large knob. Above the soundboard image, the phrase "I KNOW" is printed, and below, "WHAT ALL THE BUTTONS DO" completes the humorous message. Made from a soft, comfortable-looking material, this tee is perfect for casual wear, gigs, or as a conversation starter among music lovers. Show off your audio expertise with this unique and stylish tee!